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FROMGIT: sched/uclamp: Rename uclamp_util_with() into uclamp_rq_util_with()

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The current helper returns (CPU) rq utilization with uclamp restrictions
taken into account. A uclamp task utilization helper would be quite
helpful, but this requires some renaming.

Prepare the code for the introduction of a uclamp_task_util() by renaming
the existing uclamp_util_with() to uclamp_rq_util_with().

Bug: 120440300
Tested-By: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Quentin Perret <qperret@google.com>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20191211113851.24241-4-valentin.schneider@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit d2b58a286e
 https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core)
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Change-Id: I3e7146b788e079e400167203df5e5dadee2fd232
Signed-off-by: Quentin Perret <qperret@google.com>
This commit is contained in:
Valentin Schneider
2019-12-11 11:38:49 +00:00
committed by Quentin Perret
parent 254e090f3a
commit f59dfad8f9
2 changed files with 6 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
kernel/sched/cpufreq_schedutil.c
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@@ -272,7 +272,7 @@ unsigned long schedutil_cpu_util(int cpu, unsigned long util_cfs,
*/
util = util_cfs + cpu_util_rt(rq);
if (type == FREQUENCY_UTIL)
util = uclamp_util_with(rq, util, p);
util = uclamp_rq_util_with(rq, util, p);
dl_util = cpu_util_dl(rq);

9
kernel/sched/sched.h
View File

@@ -2322,8 +2322,8 @@ static inline void cpufreq_update_util(struct rq *rq, unsigned int flags) {}
unsigned long uclamp_eff_value(struct task_struct *p, enum uclamp_id clamp_id);
static __always_inline
unsigned long uclamp_util_with(struct rq *rq, unsigned long util,
struct task_struct *p)
unsigned long uclamp_rq_util_with(struct rq *rq, unsigned long util,
struct task_struct *p)
{
unsigned long min_util = READ_ONCE(rq->uclamp[UCLAMP_MIN].value);
unsigned long max_util = READ_ONCE(rq->uclamp[UCLAMP_MAX].value);
@@ -2344,8 +2344,9 @@ unsigned long uclamp_util_with(struct rq *rq, unsigned long util,
return clamp(util, min_util, max_util);
}
#else /* CONFIG_UCLAMP_TASK */
static inline unsigned long uclamp_util_with(struct rq *rq, unsigned long util,
struct task_struct *p)
static inline
unsigned long uclamp_rq_util_with(struct rq *rq, unsigned long util,
struct task_struct *p)
{
return util;
}